Conveyer pole for drying machines or the like



June 21, 1938. T. ALLSOP ET AL CONVE'YER POLE FOR DRYING MACHINES OR THE LIKE Filed Jan. 16, 1937 INVENTORS: Thomas flllsop 51.!

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ATTORNEYS.

Patented June 21, 1938 UNITED STATES CONVEYER POLE FOR DRYING MACHINES OR THE LIKE Thomas Allsop and Walter W. Sibson, Philadelphia, Pa., assignors to The Philadelphia. Drying Machinery Company, Philadelphia, Pa., a corporation of Pennsylvania Application January 16, 1937, Serial No. 120,855

3 Claims.

This invention relates to conveyer poles useful in connection with textile drying machines or the like, and, more particularly to the type comprising unitary sections of nonmetallic material with interengaging collars connecting the several sections in axial alignment, an axial core member, and means for securing the unitary sections on the core member against endwise separation.

The primary object of this invention is the provision of an improved form of conveyer pole of the above indicated type.

Another object of the invention is to simplify the structure and manner of assembling conveyer poles of the: character above referred to whereby the cost of production is considerably reduced without impairment of their serviceability and durability.

With the stated objects and ancillary advantages in view, the present invention essentially consists in the construction and combination of parts, of which preferred embodiments are illustrated by the accompanying sheet of drawings, while the novel features involved are more particularly expressed in the claims at the conclusion of this specification.

In the drawing:

Fig. I is a broken-out view, partly in elevation and partly in section, of a conveyer pole embodying the present improvements.

Fig. II is a cross-section, taken as indicated by the arrows IIII in Fig. I; and,

Fig. III is a fragmentary end view of a modified form of the invention.

Referring more in detail to the drawing, the improved conveyer pole of this invention comprises a metallic core member comprehensively designated C, and a non-metallic jacketing similarly designated as J. As ordinarily, the core member C is formed from suitable tubing of a length to project at both ends beyond the pole jacketing J to provide trunnion sections, capable of free rotative support by inwardly projecting elements or studs of laterally-spaced conveyer chains,-not shown, and in accordance with known practice.

The non-metallic jacketing J comprises a single length or a plurality of relatively short cylindric unitary-sections 1, 2, 3, as shown, preferably of wood, although such unitary sections may be made of fiber or other non-metallic material, and of an internal diameter for slidable assembly on the core member C. The confronting ends of the respective sections 1-3 may be interengaged, rabbeted, or butted end to end, that is to say in the form shown one of the sections, I for instance, is circumferentially reduced at 4 for snug engagement in the complementally-sectioned counter-bore 5 of the confronting end of the jacketing section 2. Such interengagement of the ends of the sections 1-3, as at E, 5 not only ensures rigidity of the jacketing J, but it also serves to prevent difierential warping of said sections, while maintaining them in true coaxial relation on the core member C.

The assembly of the jacketing J on the core member C is conveniently determined by a collar 6 having teeth '1 for coaction with racks along the path of the conveyer means, said collar being secured at the requisite adjustment by a set-screw 8, in an obvious manner. The other,

or right-hand, end of the core member C, as,

viewed in Fig. I, is provided with an abutment flange 9, formed as by outward flaring of the core end in an obvious manner. A helical spring 10, in compression, is interposed between the abutment flange 9 and the proximate end of the jacketing section 3, and it will be apparent that, after the jacketing sections 1-3 are slid onto the core member C into rabbeting connection, and the collar 6 secured by the set-screw 8, the spring 10 serves to maintain the sections 1-3 in firm end engagement one with another on the core member C, while permitting endwise expansion of said sections under the action of moisture and heat.

Instead of forming the core member C with an abutment flange 9 as above set forth, use may be had of a collar 11, securable in rigid position upon the member C by a set-screw 12, as shown in Fig. III.

From the foregoing it will be readily understood that due to the unitary formation of the jacketing sections 1-3 as complete tubes, and the rabbeting of their confronting ends in axial alignment along the core member C, that they are mounted so as to be highly resistive to distortion and strain notwithstanding unevenness or twist in the material of which they are formed, and hence are less liable to fracture incident to expansion or contraction. The sectional construction of the jacketing J is further advantageous in making replacement of a worn or damaged section 1-3 without requiring renewal as a whole of said jacketing.

Obviously, changes in the shape, proportions and minor details of construction may be effected, without departing from the essence of the invention, and the following claims are intended to embrace all such changes as are reasonably includable within their terms, and the prior art permits.

Having thus described our invention, we claim:

1. A conveyer pole for drying machines and the like comprising a number of tubular axiallyaligned unitary jacket-sections of non-metallic material, a circumferentially reduced part at one end of said sections for engagement in a counterbore in the confronting end of the adjoining section to provide annular-rabbet junctures thereat, a metallic core member snugly-fitting the bore of the several interengaged sections to maintain them in rigid axial alignment, and retainer means holding all the unitary jacket-sections in firm end abutment While permitting lengthwise expansion thereof under the action of moisture and heat.

2. A conveyer pole as defined in claim 1, wherein the core member consists of a metallic tube having one end outwardly flared to provide an abutment flange, a helical spring on the core member between said flange and the proximate jacket-section end, and a drive collar on the core member in abutment with the remote end of the jacket sections, said collar having means for securing it to the core member with the spring under constant compression.

3. A conveyer pole in accordance with claim 1, wherein the retainer means consist of a toothed collar at one end of the pole and an abutment collar at the other end, a helical spring on the core member between the jacket end and said abutment collar, and means for securing said collars to the core member at the requisite adjustment so as to constantly maintain the helical spring under compression.

THOMAS ALLSOP. WALTER W. SIBSON. 

